Home / 658,815.40-988,223.10-160,179.40

Finding the Fourth Proportional to 658,815.40, 988,223.10 and 160,179.40

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Solution

The fourth proportional to 658,815.40, 988,223.10 and 160,179.40 is: 240,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,815.40 : 988,223.10 = 160,179.40 : x
  2. Step 2: Convert to fraction form
    658,815.40/988,223.10 = 160,179.40/x
  3. Step 3: Cross multiply
    658,815.40x = 988,223.10 × 160,179.40
  4. Step 4: Simplify right side
    658,815.40x = 158,292,983,224.14
  5. Step 5: Solve for x
    x = 158,292,983,224.14/658,815.40
  6. Step 6: Final answer
    x = 240,269.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.